20010220120012 has 12 divisors (see below), whose sum is σ = 35273490212520. Its totient is φ = 9932080059296.

The previous prime is 20010220119991. The next prime is 20010220120013. The reversal of 20010220120012 is 21002102201002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20010220119974 and 20010220120001.

It is not an unprimeable number, because it can be changed into a prime (20010220120013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18257499562 + ... + 18257500657.

It is an arithmetic number, because the mean of its divisors is an integer number (2939457517710).

Almost surely, 2^{20010220120012} is an apocalyptic number.

It is an amenable number.

20010220120012 is a deficient number, since it is larger than the sum of its proper divisors (15263270092508).

20010220120012 is a wasteful number, since it uses less digits than its factorization.

20010220120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36515000360 (or 36515000358 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20010220120012 its reverse (21002102201002), we get a palindrome (41012322321014).

The spelling of 20010220120012 in words is "twenty trillion, ten billion, two hundred twenty million, one hundred twenty thousand, twelve".